›› 2010, Vol. 31 ›› Issue (1): 144-150.

• Geotechnical Engineering • Previous Articles     Next Articles

Research on failure mechanism and effects of prestressed anchor cables for reinforcing slopes

LI Ying-yong1, 2，ZHANG Ding-li1，ZHANG Hong-bo3，SONG Xiu-guang3   

  1. 1. School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China; 2. Highway Bureau of Shandong Provincial Department of Communications, Jinan 250002, China;3. School of Civil and Hydraulic Engineering, Shandong University, Jinan 250061, China
  • Received:2008-06-05 Online:2010-01-10 Published:2010-02-02

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Abstract:

Although prestressed anchor cables have been used to reinforce slopes widely, they can happen to fail at some time because they have bear high-tension stress in moist environment and been influenced greatly by many external factors. In order to make sure of failure effects of anchorage system well, failure mechanisms are put forward firstly according to monitor data of an actual slope engineering. Then, unloading test of a cable at site was performed to get the influence on tension-force of neighboring cables. By adopting the numerical simulation, the influence on anchorage force of neighboring cables and stability of slope because of cable failure is analyzed in detail. Finally, failure criterion for part slope is put forward.

Key words: prestressed anchor cables, failure mechanism, failure effects, failure criterion

CLC Number: 

  • TU 443
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